Is it possible that NTFS doesnt support other permissions?
Sim. O driver NTFS incluído no Ubuntu (NTFS 3G) não suporta alterações de propriedade e direitos. De documentação do Ubuntu :
The present limitations of this driver are:
- writing files encrypted or compressed at the filesystem level (does not include .zip, .gz, .rar files since they are compressed on the file, not the file system level)
- changing NTFS file ownership and access rights